Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2011

Notes to Financial Statements [Abstract]

Environmental Liabilities Table [Text Block]

	June 30,		December 31,
	2011		2010
	(In thousands)
Current	$	5,890	$	10,648
Noncurrent		15,517		11,920
Total environmental liabilities	$	21,407	$	22,568